[IC] Universal break-offable programmable numpad

[simkev]

Maybe someone could simply design a 6x4 keypad with the same footprint (front-to-back) as the Phantom, as a small add-on to any TKL keyboard. You could program those keys to be anything you want, if you dont want just a numberpad. And you could place it to the right or left of your TKL board, per your personal preference. Just thinking out loud here.
It would be a nice feature if the top part could be off breakable, making the numpad ideal for your 60% board such as Poker, Pure, GH60 and 7bits upcoming HyperMini.
The PCB should support standard number pad layout but also full 1u. It would need two usb ports or at least two solder point for usb. The traces that would have two pass the break-off part will tricky. Maybe we could put solder pads for ribbon cable or have the traces go between the break off holes and make the traces brake when you brake the board, or have the traces go via a cable. I think it is possible.
Layout example:
The break-off line would be somewhere where the red line is drawn.

[simkev]

Is there really no interest in a programmable numpad here at Deskthority?

[whelmingbytes]

Its not break-offable but, have you seen this? http://geekhack.org/index.php?topic=38963.0

*EDIT - Sorry, I missed your post over there